US Bridges

US 195 over Union Flat Creek

Fair

Whitman County, Washington · 9.4 N JCT US 195 SP · Structure no. 0013291A0000000

Built
1988
37 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
4,900
2023 count
Owner
State
State Highway Agency

About this bridge

US 195 over Union Flat Creek is a prestressed concrete tee beam carrying US 195 over Union Flat Creek in Whitman County, Washington. It was built in 1988, so it is 37 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,900 vehicles a day, roughly 13% of them trucks, projected to reach 5,750 by 2039. The structure is 165 ft (50.3 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesUS 195
CrossesUnion Flat Creek
Location9.4 N JCT US 195 SP
RouteU.S. Route 195
CountyWhitman County
StateWashington
Coordinates46.57619, -117.14961
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.9 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20 + Mod
Structure length165 ft (50.3 m)
Longest span53 ft (16.2 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2023)
Projected traffic5,750 by 2039
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 195 over Union Flat Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is US 195 over Union Flat Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does US 195 over Union Flat Creek carry?

About 4,900 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is US 195 over Union Flat Creek?

The structure is 165 ft (50.3 m) long with a longest span of 53 ft (16.2 m) and a deck 44 ft wide.

Who owns US 195 over Union Flat Creek?

It is owned by the State Highway Agency.